Using the cycles experimental render engine, how do I use textures in nodes to create actual mesh geometry and not just bump?
Two reasons why your mesh is not displacing. 1= you have to give your mesh a subdivision modifier and set it to adaptive (Can be done only in experimental cycles mode) so you can have enough geometry for displacement. 2= Instead of adding a math node between your noise texture and displacement output, replace the math node with a displacement node. The color of your noise texture should first be plugged nto the factor of a color ramp node and the colour of the color ramp node into the height input of your displacement node. The scale input on the displacement node decides how heavily the mesh is displaced. Then connect the displacement node to your displacement output. Your mesh will be actually displaced now. Note: You have to foolow both the methods for real displacement to work. If you get really huge spikes on your mesh try reducing the scale on your displacement node. If it still doesn't work try subdividing your mesh in edit mode a lot of times and make sure to have adaptive subdivision on on your sudivision surface modifier.